# Problem: A projectile fired into the air suddenly explodes into several fragments. What can be said about the motion of the center of mass of the system made up of all the fragments after the explosion? 1. Center of mass of the system moves in the direction opposite to the direction of a fragment with the biggest mass, 2. Center of mass of the system moves in the direction of a fragment with the biggest mass, 3. Center of mass of the system moves in the direction of the biggest fragment, 4. Center of mass does not move, 5. Center of mass of the system follows the same parabolic path the projectile would have followed if there had been no explosion, 6. There is not enough information given. 7. Center of mass of the system moves in the direction opposite to the direction of a projectile just before it exploded,

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###### Problem Details

A projectile fired into the air suddenly explodes into several fragments. What can be said about the motion of the center of mass of the system made up of all the fragments after the explosion?

1. Center of mass of the system moves in the direction opposite to the direction of a fragment with the biggest mass,

2. Center of mass of the system moves in the direction of a fragment with the biggest mass,

3. Center of mass of the system moves in the direction of the biggest fragment,

4. Center of mass does not move,

5. Center of mass of the system follows the same parabolic path the projectile would have followed if there had been no explosion,

6. There is not enough information given.

7. Center of mass of the system moves in the direction opposite to the direction of a projectile just before it exploded,